How to update and upgrade from ubuntu 14 to ubuntu 18?
I want update and upgrade my droplet which is on 14 to ubuntu 18 but it is failling and getting this error
W: Failed to fetch https://packages.sury.org/php/dists/trusty/main/binary-amd64/Packages HttpError404
W: Failed to fetch https://packages.sury.org/php/dists/trusty/main/binary-i386/Packages HttpError404
E: Some index files failed to download. They have been ignored, or old ones used instead.